417 research outputs found
Virtual reality and gamification in marketing higher education: A review and research agenda
Purpose – The purpose of this paper is to review studies on the use of virtual reality (VR) and gamification
to engage students in higher education for marketing issues to identify the research topics, the research gaps
and to prepare a future research agenda.
Design/methodology/approach – A literature review is performed based on two search terms applied
to Web of Science, resulting in a final pool of 115 articles. A text-mining approach is used to conduct a full-text
analysis of papers related to VR and gamification in higher education. The authors also compare the salient
characteristics presented in the articles.
Findings – From this analysis, five major research topics are found and analysed, namely, teaching
methodologies and education, experience and motivation, student engagement, applied theories in VR and
gamification. Based on this and following the theory concept characteristics methodology framework, the
paper provides directions for future research.
Originality/value – There is no comprehensive review exploring the topics, theories, constructs and
methods used in prior studies concerning VR and gamification applied to higher education services based on
all the articles published in well-regarded academic journals. This review seeks to provide deeper insights, to
help scholars contribute to the development of this research field.info:eu-repo/semantics/publishedVersio
Creating memories and engagement in college student through virtual reality
This study intends to extend the understanding of drivers of student
engagement in the educational context and analyse mindfulness as a moderator of the
different associations in the proposed model. The proposed model regards VR
experiences as stimuli, telepresence, pleasantness of the experience and memory as an
organism and student engagement as the response. A sample of 136 participants
allowed us to test the model. Findings revealed that all hypotheses were supported
except H6 linking pleasantness of the experience with student engagement. Only the
relationship between pleasantness and memory is higher for mindful students than nonmindful
ones. These findings mean that students do not need to feel pleasure about
what they are learning to be engaged.info:eu-repo/semantics/acceptedVersio
Teaching entrepreneurship in HEI: an analysis at the portuguese Polythecnics
Trabalho apresentado na Conference on Enabling Teachers for Entrepreneurship Education (ENTENP2013), 7-8 junho de 2013, Guarda, Portuga
Co-creation design thinking process: learning with Demola approach
info:eu-repo/semantics/publishedVersio
ORB5: a global electromagnetic gyrokinetic code using the PIC approach in toroidal geometry
This paper presents the current state of the global gyrokinetic code ORB5 as
an update of the previous reference [Jolliet et al., Comp. Phys. Commun. 177
409 (2007)]. The ORB5 code solves the electromagnetic Vlasov-Maxwell system of
equations using a PIC scheme and also includes collisions and strong flows. The
code assumes multiple gyrokinetic ion species at all wavelengths for the
polarization density and drift-kinetic electrons. Variants of the physical
model can be selected for electrons such as assuming an adiabatic response or a
``hybrid'' model in which passing electrons are assumed adiabatic and trapped
electrons are drift-kinetic. A Fourier filter as well as various control
variates and noise reduction techniques enable simulations with good
signal-to-noise ratios at a limited numerical cost. They are completed with
different momentum and zonal flow-conserving heat sources allowing for
temperature-gradient and flux-driven simulations. The code, which runs on both
CPUs and GPUs, is well benchmarked against other similar codes and analytical
predictions, and shows good scalability up to thousands of nodes
Vamsa: Automated Provenance Tracking in Data Science Scripts
There has recently been a lot of ongoing research in the areas of fairness,
bias and explainability of machine learning (ML) models due to the self-evident
or regulatory requirements of various ML applications. We make the following
observation: All of these approaches require a robust understanding of the
relationship between ML models and the data used to train them. In this work,
we introduce the ML provenance tracking problem: the fundamental idea is to
automatically track which columns in a dataset have been used to derive the
features/labels of an ML model. We discuss the challenges in capturing such
information in the context of Python, the most common language used by data
scientists. We then present Vamsa, a modular system that extracts provenance
from Python scripts without requiring any changes to the users' code. Using 26K
real data science scripts, we verify the effectiveness of Vamsa in terms of
coverage, and performance. We also evaluate Vamsa's accuracy on a smaller
subset of manually labeled data. Our analysis shows that Vamsa's precision and
recall range from 90.4% to 99.1% and its latency is in the order of
milliseconds for average size scripts. Drawing from our experience in deploying
ML models in production, we also present an example in which Vamsa helps
automatically identify models that are affected by data corruption issues
Quasi-steady and steady states in global gyrokinetic particle-in-cell simulations
Collisionless delta-f gyrokinetic particle-in-cell simulations suffer from the entropy paradox, in which the entropy grows linearly in time while low-order moments are saturated. As a consequence, these simulations do not reach a steady state and are unsuited to make quantitative predictions. A solution to this issue is the introduction of artificial dissipation. The notion of steady state in gyrokinetic simulations is studied by deriving an evolution equation for the fluctuation entropy and applying it to the global collisionless particle-in-cell code ORB5 [S. Jolliet , Comput. Phys. Commun. 177, 409 (2007)]. It is shown that a recently implemented noise-control algorithm [B. F. McMillan , Phys. Plasmas 15, 052308 (2008)] based on a W-stat provides the necessary dissipation to reach a steady state. The two interesting situations of decaying and driven turbulence are considered. In addition, it is shown that a separate heating algorithm, not based on a W-stat, does not lead to a statistical steady state
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